tkip_mixing_phase1
tkip_mixing_phase1(tkey->tx_ttak, tkey->key, hdr->addr2,
tkip_mixing_phase1(tkey->rx_ttak, tkey->key, hdr->addr2, iv32);
tkip_mixing_phase1(tk, ctx, sdata->vif.addr, iv32);
tkip_mixing_phase1(tk, &ctx, ta, iv32);
tkip_mixing_phase1(tk, &rx_ctx->ctx, ta, iv32);